Fig. 7. Mean spectra from the fibroadenoma and low-grade phyllodes tumor matrix-assisted laser desorption ionization (MALDI) imaging mass spectrometry (IMS) data.
Mean spectra were generated from normalized, recalibrated data. Result from epithelial component is shown on top and the result from the stromal component is shown on the bottom. The x-axis of the plot is m/z whereas the y-axis is the mean spectra. The bottom spectra (phyllodes tumor) in each plot are arbitrary flipped to make comparison easier. As shown, there is no visually discernable difference in the mean spectra of fibroadenoma and low-grade phyllodes tumor.